.o-mail-SubChannelPreview {
    background-color: mix($gray-100, $gray-200);

    &:hover {
        background-color: $gray-100 !important;
    }
}

.o-mail-SubChannelPreview-lastMessage {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
